Fertiliser injector with digging head on pipe - has digging head with fertiliser outlet orifices and pipe which can move on inner pipe

摘要

The fertilizer injector has a pipe which carries a digging head and can be driven into the ground. On the digging head are orifices for the outlet of a fertilizer which is passed through the pipe from a pressurised fertiliser container. The pipe is arranged as an outer pipe (15) which can be longitudinally moved on an inner pipe, which has a striker device at the top end away from the digger head. When there is a downwards movement of the inner pipe, which has been drawn out of the outer pipe (15), the striker device strikes against the top end of the outer pipe. A belt is connected with the inner pipe and can be pivoted into the path of the outer pipe.